Our Oven Gets Hot

Very hot:

We bought this little pot two days and I had it resting on the stove top as I baked at pizza at 425 degrees. My eyes almost poppped out when the glass cracked all at once. It would have been funny if I was really angry and it happened, like I had super powers or something.

This gets me thinking. Somewhere deep in the back of my head I know I'll be cruising someday in some very hot areas of the world. There is no way I'm going to want to use this stove or oven while I'm there. During the winter it is wonderful because it makes the boat toasty, but during the summer, it can make it dreadful in the cabin.

Has anyone ever had any luck with a solar oven? I'm wondering if we could attach one to the transom for outdoor cooking in the tropics. Or maybe we won't cook at all. Maybe we'll just live off of gazpacho and melons.